Needle Rollers

Needle Rollers are used in automotive transmissions, universal joints, front wheeldrive,constant
velocity joints water pump bearings, roller clutches, rollerized
cam lifters, rocker arms, cam rollers, starter drives and as pins and dowels for
various applications. 
Specifications of Needle Rollers.
Materials Standard:- AISI 52100 or SAE 52100 bearing quality chrome steel.
Hardness	Standard :- HRC 58 to 64
Surface Finish  Standard:- OD Ground and Lapped to surface finish of 0.020 um Ra
Max
Alternative : Surface finish of 0.025 um Ra Max is available on request.
Tolerance	Outside diameter (mm) --> Standard : +0.000 to - 0.005 [G5]
Length ---> Standard: +0.000 to - 0.500
Applications of Needle Rollers
Needle Rollers are available special end forms provide performance benifits for specific
kinds of applications as shown below.
I-Type BR (Rounded ends)
II- Type BP (Flat Underground ends)
III- Type BPM (Flat Ground ends)